Black, John Donald <br/><br/>
Introduction to economics for agriculture / 
John Donald Black 
 - New York :  Macmillan ,  1953 
 - xv, 727p. :  ill. ;  21 cm.  
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture<br/>Economic aspects
<br/><br/><label>Dewey Class. No.: </label>630  / BLA-2